DS1921G Maxim, DS1921G Datasheet - Page 42

• Manufacturer Part Number: DS1921G
• Description: The DS1921G Thermochron® iButton® is a rugged, self-sufficient system that measures temperature and records the result in a protected memory section
• Manufacturer: Maxim

Thermochron iButton
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
42 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2011 Maxim Integrated Products
REVISION
120407
DATE
4/09
4/10
4/11
9/11
Added bullet “Water resistant or waterproof if placed inside DS9107 iButton capsule (Exceeds Water
Resistant 3 ATM requirements)”
Deleted “application pending” from UL bullet and safety statement
Added text to Detailed Description section: Note that the initial sealing level of DS1921G achieves
IP56. Aging and use conditions can degrade the integrity of the seal over time, so for applications
with significant exposure to liquids, sprays, or other similar environments, it is recommended to
place the Thermochron in the DS9107 iButton capsule. The DS9107 provides a watertight enclosure
that has been rated to IP68 (See www.maxim-ic.com/AN4126)
Created newer template-style data sheet
Overdrive specifications for t
values for the full range
Updated UL certificate reference; deleted from the t
table; applied note 13 to the t
details to Electrical Characteristics table notes 7, 13, and 14
DS1921G-F5N# part number added to the Ordering Information; branding information updated in the
Pin Configuration
RSTL
W0L
, t
specification in the Electrical Characteristics table; added more
PDL
, and t
DESCRIPTION
W0L
split into range V
Maxim is a registered trademark of Maxim Integrated Products, Inc.
W1L
specification in the Electrical Characteristics
PUP
> 4.5V and full range. New
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